Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cham xuc » cam xuc, chat xuc, cham soc
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
van cham » van chat, van tham, va cham
thi van » thi lan, thi hanh, thi nang
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
vai cau » va cau, van cau, vai cac
tu sach » thu sach, te sach, tu cach
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ty nang o hoi. thi van cham xuc ((ban hanh) or (va thanh)) vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang o hoi. thi van cham xuc ((ban hanh) OR (va thanh)) vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ty nang o hoi. thi van cham xuc ((ban hanh) or (va thanh)) vai cau tren".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ty nang o hoi. thi van cham xuc ((ban hanh) or (va thanh)) vai cau tren*.